Urine iodine is usually checked with a urine test. Urine iodine checks the level of iodine in the urine and is usually done by testing the urine to see if the urine contains iodine, which is used to determine if there is an iodine deficiency in the body. If there is iodine deficiency, symptoms of goiter or hypothyroidism may occur. This can be treated with oral levothyroxine sodium tablets under the supervision of a doctor and regular thyroid function tests. Urinary iodine is mainly used to determine whether a woman is iodine deficient during pregnancy. It is used to measure the iodine nutritional status of a pregnant woman by considering whether she is suffering from iodine deficiency due to insufficient iodine intake or iodine deficiency due to increased iodine excretion. It also helps to determine the effect on the mental development of the fetus, which may be abnormal if the body is deficient in iodine during pregnancy. It is recommended not to do strenuous exercise before the urine iodine test, and prohibit taking foods high in protein. Relaxation and elimination of tension and anxiety can make the test results more accurate. In your daily life, you can eat more fresh fruits and vegetables, and consume the right amount of iodine according to your own situation.